Heating apparatus for motor-vehicles.



D.. W. DUDDERAR.. HEATING APPARATUS POR MOTOR VEHICLES.

APPLIGATION FILED JAN. 21, 191s.

L09 Lm@ Patented Mah 31, 1914.

2 SHEETS-SHEET 1.'

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' D. W. DUDDERAR. HEATING APPARATUS FOR MOTOR VEHICLES. APPLICATION HLBD JAN.21,1913.

LQ@ 19316@ Patented Mar. 3l, i914.

' 2 SHEBTS-SHBBT Lemme 2. The eombinittion with it radiator Coil of means for supplying heated ged-ses thereto, fluid-controlling valve mechanism cenneeted therewith, a radiator-Coil exhaust pipe connected With -the radiator coil, a vulve in the radiator-coil exhaust pipe, e plurality of auxiliary heating pipes extending from various .portions of" the radiator coil to the radiator-coil exhaust pipe, the aforesaid auxiliary heating pipes being 03' variant length so that the eonduitsprovcled by the resective pipes in Connection withv that provi eil by the radiator 'soil iluv edvanceof their respective point ojuuctuie with the z'adizltor coil are ef substantially equal length exhaust controlling valve mechanism independently;operative io Cpntrolling said auxiiiztry pipes, mid muflimg mechanisuhin communication with the rudi `:ltor coil exhaust pipe.

In testimonyvwhereof ll sul 

